Help needed! How to restore my bricked iPhone 4
i'm on an jailbreaked AT&T locked iPhone 4 and had some problems caused by a third party program. So i foolishly decided to "erase all content and settings" without realizing that this will delete my JB as well. I know... i should have checked that before...
I was stuck with bb 02.10.04 since october waiting for an unlock and can't remember which OS version i used. in fact i used a modified ipsw file to JB the phone.
however - the phone was in a bootloop but i managed to get it into restore mode now.
my problem now is - what ipsw file to use? which one is able to get JB afterwards. should i use another modified ipsw? and which programm to use? redsn0w? or should i restore via iTunes?
any hint would be greatly apprechiated.